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# A file for the units in my unit converter program
# SI Base Units
# ! means "look for an existing unit which I will load at the start"
# This is necessary because every unit must be defined by others, and I need somewhere to start.
metre !
kilogram !
second !
ampere !
kelvin !
mole !
candela !
# Symbols and aliases for base units
meter metre
m metre
kg kilogram
s second
A ampere
K kelvin
mol mole
cd candela
# the bit and byte, units of information
bit !
b bit
byte 8 bit
B byte
# SI prefixes
deca- 10
deka- deca
hecto- 100
kilo- 1e3
mega- 1e6
giga- 1e9
tera- 1e12
peta- 1e15
exa- 1e18
zetta- 1e21
yotta- 1e24
deci- 1e-1
centi- 1e-2
milli- 1e-3
micro- 1e-6
nano- 1e-9
pico- 1e-12
femto- 1e-15
atto- 1e-18
zepto- 1e-21
yocto- 1e-24
D- deca
h- hecto
H- hecto
k- kilo
K- kilo
M- mega
G- giga
T- tera
P- peta
E- exa
Z- zetta
Y- yotta
d- deci
c- centi
m- milli
u- micro
n- nano
p- pico
f- femto
a- atto
z- zepto
y- yocto
# Binary prefixes (i.e. metric but 1024 replaces 1000)
kibi- 1024^1
mebi- 1024^2
gibi- 1024^3
tebi- 1024^4
pebi- 1024^5
exbi- 1024^6
Ki- kibi
Mi- mebi
Gi- gibi
Ti- tebi
Pi- pebi
Ei- exbi
# Derived SI units
# Note: it is best to have these before any non-SI units
newton kg m / s^2
N newton
pascal N / m^2
Pa pascal
joule N m
J joule
watt J/s
W watt
coulomb A s
C coulomb
volt W/A
V volt
ohm V/A
siemens A/V
S siemens
farad C/V
F farad
weber V s
Wb weber
henry V s / A
H henry
tesla Wb / m^2
T tesla
hertz s^-1
Hz hertz
# Angle units and constants
# Tau is the circle constant, equal to a circle's diameter divided by its radius
tau 6.28318530717958
# Another common circle constant
pi tau / 2
radian m / m
rad radian
steradian m^2 / m^2
sr steradian
degree 360 / tau * radian
deg degree
° degree
# Nonlinear units, which are not supported by the file reader and must be defined manually
# Use tempC(100) for 100 degrees Celsius
tempCelsius !
tempFahrenheit !
tempC tempCelsius
tempF tempFahrenheit
# Common time units
minute 60 second
min minute
hour 3600 second
h hour
day 86400 second
d day
julianyear 365.25 day
gregorianyear 365.2425 day
# Other non-SI "metric" units
litre 0.001 m^3
liter litre
l litre
L litre
tonne 1000 kg
t tonne
are 100 m^2
hectare hectoare
arcminute 1 / 60 degree
arcmin arcminute
arcsecond 1 / 60 arcminute
arcsec arcsecond
# constants
waterdensity 1 kilogram / litre
# Imperial length units
foot 0.3048 m
ft foot
inch 1 / 12 foot
in inch
yard 3 foot
yd yard
mile 1760 yard
mi mile
# Imperial weight units
pound 0.45359237 kg
lb pound
ounce pound / 16
oz ounce
stone 14 lb
UShundredweight 100 lb
UKhundredweight 8 stone
USimperialton 20 UShundredweight
UKimperialton 10 UKhundredweight
# Imperial volume units
UKfluidounce ounce / waterdensity
UKfloz UKfluidounce
UKcup 10 UKfloz
UKpint 2 UKcup
UKquart 2 UKpint
UKgallon 4 UKquart
UKgal UKgallon
USgallon 231 inch^3
USgal USgallon
USquart USgallon / 4
USpint USquart / 2
UScup USpint / 2
USfluidounce UScup / 8
USfloz USfluidounce
UStablespoon USfluidounce / 2
UStbsp UStablespoon
USteaspoon UStablespoon / 3
UStsp USteaspoon
# Metric versions!
# tsp = 5 mL, tbsp = 15 mL, floz = 30 mL, cup = 240 mL, pint = 480 mL, quart = 960 mL, gallon = 3840 mL
# only metrictsp, metrictbsp and metriccup are common, the rest are derived from the US formulae with 240 mL cup
metricteaspoon 5 mL
teaspoon metricteaspoon
tsp metricteaspoon
metrictablespoon 3 metricteaspoon
tablespoon metrictablespoon
tbsp metrictablespoon
metricfluidounce 2 metrictablespoon
metriccup 8 metricfluidounce
cup metriccup
metricpint 2 metriccup
pint metricpint
metricquart 2 metricpint
quart metricquart
metricgallon 4 metricquart
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